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Ability to input text and show cursor+return last char pos from glyph renderer

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This commit is contained in:
bloeys
2022-07-12 13:10:20 +04:00
parent 8dfedbe030
commit 68962238e2
4 changed files with 150 additions and 66 deletions
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35
glyphs/glyphs.go
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@ -54,20 +54,32 @@ type GlyphRend struct {
//DrawTextOpenGLAbs prepares text that will be drawn on the next GlyphRend.Draw call.
//screenPos is in the range [0,1], where (0,0) is the bottom left.
//Color is RGBA in the range [0,1].
func (gr *GlyphRend) DrawTextOpenGL01(text string, screenPos *gglm.Vec3, color *gglm.Vec4) {
func (gr *GlyphRend) DrawTextOpenGL01String(text string, screenPos *gglm.Vec3, color *gglm.Vec4) gglm.Vec3 {
screenPos.Set(screenPos.X()*float32(gr.ScreenWidth), screenPos.Y()*float32(gr.ScreenHeight), screenPos.Z())
gr.DrawTextOpenGLAbs(text, screenPos, color)
return gr.DrawTextOpenGLAbsString(text, screenPos, color)
}
//DrawTextOpenGLAbs prepares text that will be drawn on the next GlyphRend.Draw call.
//screenPos is in the range ([0,ScreenWidth],[0,ScreenHeight]).
//DrawTextOpenGLAbsString prepares text that will be drawn on the next GlyphRend.Draw call.
//screenPos is in the range ([0,ScreenWidth],[0,ScreenHeight]) where (0,0) is bottom left.
//Color is RGBA in the range [0,1].
func (gr *GlyphRend) DrawTextOpenGLAbs(text string, screenPos *gglm.Vec3, color *gglm.Vec4) {
func (gr *GlyphRend) DrawTextOpenGLAbsString(text string, screenPos *gglm.Vec3, color *gglm.Vec4) gglm.Vec3 {
return gr.DrawTextOpenGLAbs([]rune(text), screenPos, color)
}
func (gr *GlyphRend) DrawTextOpenGL01(text []rune, screenPos *gglm.Vec3, color *gglm.Vec4) gglm.Vec3 {
screenPos.Set(screenPos.X()*float32(gr.ScreenWidth), screenPos.Y()*float32(gr.ScreenHeight), screenPos.Z())
return gr.DrawTextOpenGLAbs(text, screenPos, color)
}
//DrawTextOpenGLAbsString prepares text that will be drawn on the next GlyphRend.Draw call.
//screenPos is in the range ([0,ScreenWidth],[0,ScreenHeight]) where (0,0) is bottom left.
//Color is RGBA in the range [0,1].
func (gr *GlyphRend) DrawTextOpenGLAbs(text []rune, screenPos *gglm.Vec3, color *gglm.Vec4) gglm.Vec3 {
runs := gr.TextRunsBuf[:]
gr.GetTextRuns(text, &runs)
if runs == nil {
return
return *screenPos
}
pos := screenPos.Clone()
@ -94,12 +106,15 @@ func (gr *GlyphRend) DrawTextOpenGLAbs(text string, screenPos *gglm.Vec3, color
}
if PrintPositions {
if consts.Mode_Debug && PrintPositions {
println("")
}
}
return *pos
}
//@TODO: Debug
var PrintPositions bool
func (gr *GlyphRend) drawRune(run *TextRun, i int, prevRune rune, screenPos, pos *gglm.Vec3, color *gglm.Vec4, lineHeightF32 float32, bufIndex *uint32) {
@ -205,14 +220,12 @@ type TextRun struct {
IsLtr bool
}
func (gr *GlyphRend) GetTextRuns(t string, textRunsBuf *[]TextRun) {
func (gr *GlyphRend) GetTextRuns(rs []rune, textRunsBuf *[]TextRun) {
if len(t) == 0 {
if len(rs) == 0 {
return
}
rs := []rune(t)
runs := textRunsBuf
currRunScript := RuneInfos[rs[0]].ScriptTable